From: Changbin Du <changbin.du@intel.com>
Date: Tue, 27 Dec 2016 05:25:06 +0000 (+0800)
Subject: drm/i915/gvt: fix return value in mul_force_wake_write
X-Git-Tag: v4.10-rc6~31^2~6^2~5^2~11
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=39762ad437f1149b904e6baeaf28824da34a89c1;p=karo-tx-linux.git

drm/i915/gvt: fix return value in mul_force_wake_write

All mmio handlers should return a negetive value for failure, not 1.

Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
---

diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
index e06d5f37bb92..8cbaf1c83720 100644
--- a/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/drivers/gpu/drm/i915/gvt/handlers.c
@@ -220,7 +220,7 @@ static int mul_force_wake_write(struct intel_vgpu *vgpu,
 		default:
 			/*should not hit here*/
 			gvt_err("invalid forcewake offset 0x%x\n", offset);
-			return 1;
+			return -EINVAL;
 		}
 	} else {
 		ack_reg_offset = FORCEWAKE_ACK_HSW_REG;